optima.study - dns.ninja
optima.study
study
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.study ⭐ | ||||||
| NS | b.nic.study | ||||||
| NS | c.nic.study | ||||||
| NS | x.nic.study | ||||||
| NS | y.nic.study | ||||||
| NS | z.nic.study | ||||||
| SOA | a.nic.studyadmin@tldns.godaddy serial=1782868546 | ||||||
Same first word
Similar names
DNS History
9 records (7 active, 2 former)
●NSanita.ns.cloudflare.com2026-03-19 → 2026-07-01 · 2 obs
● 2026-07-01 02:15:44
●NSpranab.ns.cloudflare.com2026-03-19 → 2026-07-01 · 2 obs
● 2026-07-01 02:15:44
●MXoptima-study.mail.protection.outlook.com2026-03-19 → 2026-07-01 · 2 obs
● 2026-07-01 02:15:44
●A104.21.37.1622026-03-19 → 2026-07-01 · 2 obs
● 2026-07-01 02:15:44
●A172.67.210.1172026-03-19 → 2026-07-01 · 2 obs
● 2026-07-01 02:15:44
○A2606:4700:3033::6815:25a22026-03-19 → 2026-06-12 · 3 obs
● 2026-06-12 22:19:50
○ 2026-07-01 02:15:44
●A2606:4700:3034::ac43:d2752026-07-01 → 2026-07-01 · 2 obs
● 2026-07-01 02:15:44
●A2606:4700:3036::6815:25a22026-07-01 → 2026-07-01 · 2 obs
● 2026-07-01 02:15:44
○A2606:4700:3037::ac43:d2752026-03-19 → 2026-06-12 · 3 obs
● 2026-06-12 22:19:50
○ 2026-07-01 02:15:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| study | z.nic.study, x.nic.study, b.nic.study, y.nic.study... | 12 records |
| optima.study | anita.ns.cloudflare.com, pranab.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.34.82
NS records: anita.ns.cloudflare.com, pranab.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for optima.study (unsigned zone)
⏱️ Timing
Total: 959ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.210.117, 104.21.37.162 |
| AAAA | 2 | 2606:4700:3036::6815:25a2, 2606:4700:3034::ac43:d275 |
| NS | 2 | anita.ns.cloudflare.com, pranab.ns.cloudflare.com |
| MX | 1 | optima-study.mail.protection.outlook.com |
| TXT | 4 | MS=ms32379877, esputnik-verification=RVNQX0RWS19WMQABa_... |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | anita.ns.cloudflare.com dns.cloudflare.c |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (z.nic.study, z.nic.study, x.nic.study...)
Analysis
IP Addresses
optima.study has four IP addresses: 104.21.37.162, 172.67.210.117, 2606:4700:3034::ac43:d275 and 2606:4700:3036::6815:25a2.
lilewang.cn, procuroamante.org, justrats.com and two other host names share IP numbers with optima.study.
Name Servers
optima.study uses two name servers for its delegation: anita.ns.cloudflare.com and pranab.ns.cloudflare.com.
optima.study uses the same name servers as several other domains — among them gramo.be, notariaatverelst.be, microlightmusic.co.uk and two more.
optima.study shares at least some of its name servers with other domains, including kaba.pics, etisalat.homes, frizerstvo-sezana.si and two others.
These name servers are frequently paired with the name servers peter.ns.cloudflare.com and ryan.ns.cloudflare.com.
Hostnames that resolve to 6 IP addresses:
Hostname anita.ns.cloudflare.com directs to 108.162.194.82, 162.159.38.82 and 172.64.34.82 along with 3 other IP addresses.
Hostname pranab.ns.cloudflare.com directs to 108.162.195.199, 162.159.44.199 and 172.64.35.199 along with 3 other IP addresses.
Mail Servers
Mail for optima.study is handled by a single mail server, optima-study.mail.protection.outlook.com.
optima-study.mail.protection.outlook.com resolves to 8 IP addresses — 52.101.68.16, 52.101.73.15, 52.101.73.30 and 5 others.